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The base that is not present in DNA is

  • A.uracil
  • B.adenine
  • C.guanine
  • D.thymine
  • E.cytosine

Answer: A

The base not present in DNA is uracil.

DNA contains adenine, guanine, cytosine and thymine. RNA contains uracil in place of thymine.

Adenine and guanine (purines) and cytosine and thymine (pyrimidines) are all found in DNA, so they cannot be the answer.

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